Emil jahr



2 Sheets-Sheet 1.

(N0 Model.)

B. J AHR.

INHALER.

jed Mar. 19, 1889.

Patent N. PETERS, PholmLllhngripher. Washmglcn. n. C

2 Sheets-Sheet 2.

(No Model.)

B. JAHR.

INHALER.

EMIL JAHR, OF BERLIN, GERMANY.

INHALER.

SPECIFICATION forming part of Letters Patent No. 399,901, dated March19, 1889.

Application filed June 13, 1888.

To all whom it may concern.-

Be it known that I, EMIL J AHR, Secretary at the German Government Boardof Health of Berlin, in the Kingdom of Prussia and German Empire, haveinvented anew and useful Improved Inhaling Apparatus, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

This invention relates to an apparatus for conveying medicament into thehuman body by inhaling. In order to manage this, I use the apparatusshown in the accompanying drawings, in which Figure l is a side View ofsuch an apparatus; Fig. 2, a top view; Fig. 3, a vertical cross-sectionthrough the line 0;, Fig. 2; and Fig. etis a horizontal crosssection ofthe same.

In order to convey evaporated medicament into the human body byinhaling, and to deposit the same therein, it must be mixed with air ofa temperature higher than that of the human body-namely, over 37centigrade. The air must be completely saturated with steam and soinhaled.

The apparatus consists of a round or oval boiler, a, in which is placedthe round or oval boiler 19, and so formed that it stands at a certaindistance from the side walls of the boiler a. The space between the twoboilers a and b is closed at the top, but can be filled with waterthrough a in the top and run off at the cock a The water is warmed to atemperature of 50 centigrade by means of the gas burner c or othersuitable way from under the boiler a. Between the bottom of the innerboiler, I), and the boiler a is a bent tube or pipe, (Z, placed, the oneend of which passes out through the boiler a into the air at d, whilethe other end is led into the boiler b at (P. Opposite the opening (Z isa branch, b led into the side of the boiler l). The boiler b has ahinged cover or lid. The branch 12 is for conducting the air, which iswarmed in the boiler b, to the patient through the tube It. Thebranch 1) passes through a branch, a, on the boiler a, between whichthere is a circular space. This space is kept warm, being incommunication with the water in the boiler a. In this way is the warmedair which is drawn from the boiler I) kept warm. Right or left on theboiler a are two sprays, e, of usual eon- Serial No. 277,020. (Nomodel.)

struction, the cisterns of which, 6, are heated by gas or a spiritflame. The safety-valves of these cisterns are led into the boiler to.The mouthpiece of the sprays are conducted into the boiler b and lieover the suction-pipes e The suction-pipes e are led into the well 1; inthe boiler b.- The well 0 is filled with the medicament which it isdesired to be inhaled through the opening 0 in the cover and eventuallyrun off again by the pipe 1 and cook r. llledicament which has beenevaporated in another apparatus could also be led into the boiler 1)through the opening 15 In order to ascertain. the temperature andmoisture of the air at any moment, and so arrange the burner under theboiler to and the cisterns e, the boiler b is provided with twothermometers, f f The thermometer f tells the temperature of the air,and the thermometer f whose bulb is surrounded with gauze, rests in thebox g, which contains water, and is kept continually moist, according tothe moisture of the air and steam, and thus the moisture of the mixturecan be ascertained.

In order that the thermometer f should register correctly, there is asmall fly in the boiler b, which is driven by clock-work on the cover,Figs. 1 and 2, which brings the air in contact with the bulb of thethermometer f The working of the apparatus is as follows: On thebranches a b is fastened an indiarubber tube, h, the free end of whichthe patient places to his mouth. The patient draws at each breathaportion of the air in from he boiler b, which is replaced by dried airfrom the spiral tube (Z,which enters at d from outside and escapes at (Zinto the boiler I), while the two sprays work continually, and thus keepthe entering air moist with steam and charged with the medicament. Theair entering the tube (1 can be passed through a holder, 7t, containingchloride of calcium when it is desirable or necessary to filter it fromits moisture and warmth and to clear it. In the case that only gaseousmedicament is used, then only is steam added to the same in the boiler bby the spray-pipes e e.

\Vhat I claim, and desire to secure by Letters Patent of the UnitedStates, is

In an inhaler, the combination of the water-boiler (t, in which theairreservoir 7) is placechwith the spray-pipes e, and the double InWitness whereof I have hereunto set my branch pipes a U, With theindia-rubber pipe hand in presence of two Witnesses.

h, arranged as described, whereby the air enters the spiral tube (Z, iswarmed therein with M JAHR 5 steam and the desired medicament, and isWitnesses:

finally drawn off through the double branch B. R01,

(L b substantially as described. F. VON VERREN.

